🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.21

Radius: 1.37

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.46 AU - 0.74 AU

Year: 300 Days

Day: 28.9 Hours

Environment

Temp: -122 °C

Axial Tilt: 3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 639.6

Radius: 14.8

Gravity: 2.92 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.66 AU - 1.08 AU

Year: 524 Days

Day: 9.4 Hours

Environment

Temp: -148 °C

Axial Tilt: 47.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 55,054,297 km

• M1: 184,005 km (0.069 R)
• M2: 680,521 km (0.099 R)
• M3: 1,221,915 km (0.05 R)
• M4: 1,793,529 km (0.076 R)
• M5: 2,504,867 km (0.093 R)
• M6: 3,106,250 km (0.114 R)
• M7: 3,869,349 km (0.11 R)
• M8: 4,353,747 km (0.076 R)
• M9: 5,084,383 km (0.119 R)
• M10: 5,599,000 km (0.095 R)
• M11: 6,148,323 km (0.063 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 90.6

Radius: 14

Gravity: 0.46 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.93 AU - 1.39 AU

Year: 807 Days

Day: 7.9 Hours

Environment

Temp: -163 °C

Axial Tilt: 47.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 55,054,297 km

• M1: 175,628 km (0.034 R)
• M2: 641,176 km (0.103 R)
• M3: 1,434,943 km (0.054 R)
• M4: 3,132,131 km (0.116 R)
• M5: 3,589,003 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 927.8

Radius: 11.9

Gravity: 6.55 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 1.94 AU - 2.08 AU

Year: 1840 Days

Day: 11.2 Hours

Environment

Temp: -184 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 55,054,297 km

• M1: 148,102 km (0.112 R)
• M2: 674,537 km (0.047 R)
• M3: 1,118,543 km (0.095 R)
• M4: 1,718,580 km (0.061 R)
• M5: 2,723,429 km (0.057 R)
• M6: 3,215,606 km (0.119 R)
• M7: 4,441,561 km (0.063 R)
• M8: 4,862,230 km (0.104 R)
• M9: 5,448,953 km (0.077 R)
• M10: 8,188,389 km (0.078 R)
• M11: 8,597,689 km (0.1 R)
• M12: 9,287,784 km (0.106 R)
• M13: 9,733,286 km (0.092 R)
• M14: 11,699,301 km (0.103 R)
• M15: 12,300,835 km (0.092 R)
• M16: 12,796,751 km (0.114 R)
• M17: 14,501,569 km (0.113 R)
• M18: 15,575,382 km (0.072 R)
• M19: 16,107,203 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 327.8

Radius: 9.8

Gravity: 3.41 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 3.22 AU - 4.9 AU

Year: 5282 Days

Day: 5.8 Hours

Environment

Temp: -212 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 55,054,297 km

• M1: 121,922 km (0.09 R)
• M2: 1,268,740 km (0.117 R)
• M3: 1,612,815 km (0.116 R)
• M4: 2,313,681 km (0.03 R)
• M5: 3,298,783 km (0.091 R)
• M6: 3,812,951 km (0.077 R)
• M7: 4,636,337 km (0.073 R)
• M8: 4,952,288 km (0.079 R)
• M9: 5,764,455 km (0.083 R)
• M10: 7,034,989 km (0.066 R)
• M11: 8,483,097 km (0.079 R)
• M12: 8,957,621 km (0.029 R)
• M13: 9,334,608 km (0.092 R)
• M14: 10,780,471 km (0.105 R)
• M15: 11,468,921 km (0.11 R)
• M16: 12,416,474 km (0.118 R)
• M17: 14,467,161 km (0.107 R)
• M18: 14,986,864 km (0.077 R)
• M19: 16,063,670 km (0.049 R)
• M20: 16,452,475 km (0.097 R)
• M21: 17,481,110 km (0.062 R)
• M22: 17,892,504 km (0.077 R)
• M23: 19,103,798 km (0.103 R)
• M24: 19,477,643 km (0.095 R)
• M25: 19,919,854 km (0.07 R)
• M26: 20,890,146 km (0.118 R)
• M27: 23,347,141 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 974.9

Radius: 12.8

Gravity: 5.95 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 3.94 AU - 5.86 AU

Year: 7003 Days

Day: 5.5 Hours

Environment

Temp: -212 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 55,054,297 km

• M1: 159,172 km (0.065 R)
• M2: 744,848 km (0.113 R)
• M3: 1,913,806 km (0.088 R)
• M4: 2,520,575 km (0.11 R)
• M5: 3,743,088 km (0.048 R)
• M6: 4,473,575 km (0.1 R)
• M7: 5,021,851 km (0.058 R)
• M8: 5,778,367 km (0.097 R)
• M9: 6,324,100 km (0.091 R)
• M10: 7,130,433 km (0.108 R)
• M11: 8,086,962 km (0.112 R)
• M12: 8,771,073 km (0.082 R)
• M13: 12,227,382 km (0.091 R)
• M14: 13,245,246 km (0.089 R)
• M15: 13,954,489 km (0.118 R)
• M16: 14,813,929 km (0.08 R)
• M17: 17,186,103 km (0.09 R)
• M18: 20,886,705 km (0.047 R)
• M19: 24,732,567 km (0.054 R)
• M20: 27,103,245 km (0.037 R)
• M21: 27,958,047 km (0.068 R)
• M22: 31,766,659 km (0.119 R)
• M23: 38,582,338 km (0.088 R)
• M24: 41,137,619 km (0.032 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 465

Radius: 11.5

Gravity: 3.52 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 4.9 AU - 6.42 AU

Year: 8694 Days

Day: 13.3 Hours

Environment

Temp: -221 °C

Axial Tilt: 43.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 55,054,297 km

• M1: 144,661 km (0.062 R)
• M2: 632,949 km (0.093 R)
• M3: 1,028,037 km (0.091 R)
• M4: 1,897,200 km (0.119 R)
• M5: 2,393,566 km (0.069 R)
• M6: 2,836,226 km (0.109 R)
• M7: 3,650,188 km (0.102 R)
• M8: 5,066,880 km (0.111 R)
• M9: 5,581,048 km (0.12 R)
• M10: 7,223,333 km (0.098 R)
• M11: 7,757,996 km (0.072 R)
• M12: 8,155,777 km (0.048 R)
• M13: 11,084,604 km (0.07 R)
• M14: 11,693,318 km (0.104 R)
• M15: 13,088,617 km (0.108 R)
• M16: 13,711,393 km (0.042 R)
• M17: 16,143,405 km (0.117 R)
• M18: 16,925,952 km (0.111 R)
• M19: 17,597,198 km (0.088 R)
• M20: 20,012,904 km (0.077 R)
• M21: 22,082,590 km (0.081 R)
• M22: 23,374,518 km (0.107 R)
• M23: 25,492,824 km (0.113 R)
• M24: 27,186,271 km (0.111 R)
• M25: 28,107,046 km (0.056 R)
• M26: 31,494,241 km (0.066 R)
• M27: 31,999,284 km (0.085 R)
• M28: 33,129,496 km (0.085 R)
• M29: 34,179,972 km (0.106 R)
• M30: 35,361,047 km (0.092 R)
• M31: 37,464,692 km (0.1 R)
• M32: 37,917,974 km (0.079 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 568

Radius: 4.3

Gravity: 30.72 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 8.27 AU - 11.37 AU

Year: 19869 Days

Day: 18.4 Hours

Environment

Temp: -232 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 55,054,297 km

• M1: 54,753 km (0.114 R)
• M2: 232,325 km (0.108 R)
• M3: 372,947 km (0.072 R)
• M4: 648,357 km (0.112 R)
• M5: 1,260,661 km (0.096 R)
• M6: 1,879,248 km (0.1 R)
• M7: 3,235,204 km (0.061 R)
• M8: 3,568,956 km (0.096 R)
• M9: 4,175,576 km (0.068 R)
• M10: 4,673,587 km (0.097 R)
• M11: 5,284,994 km (0.111 R)
• M12: 5,707,907 km (0.04 R)
• M13: 6,577,370 km (0.088 R)
• M14: 7,437,258 km (0.114 R)
• M15: 9,104,227 km (0.115 R)
• M16: 9,487,347 km (0.102 R)
• M17: 10,882,946 km (0.067 R)
• M18: 11,502,730 km (0.103 R)
• M19: 12,610,053 km (0.07 R)
• M20: 13,293,566 km (0.097 R)
• M21: 13,644,373 km (0.117 R)
• M22: 13,857,849 km (0.047 R)
• M23: 15,109,834 km (0.108 R)
• M24: 25,400,073 km (0.096 R)
• M25: 26,267,741 km (0.098 R)
• M26: 28,176,909 km (0.12 R)
• M27: 29,936,628 km (0.05 R)
• M28: 30,782,305 km (0.096 R)
• M29: 32,143,346 km (0.114 R)
• M30: 32,647,940 km (0.106 R)
• M31: 35,117,502 km (0.077 R)
• M32: 37,988,734 km (0.098 R)
• M33: 38,694,836 km (0.057 R)
• M34: 38,836,954 km (0.076 R)
• M35: 42,962,713 km (0.096 R)
• M36: 44,038,023 km (0.057 R)
• M37: 62,191,126 km (0.074 R)
• M38: 63,764,148 km (0.073 R)
• M39: 64,961,230 km (0.065 R)
• M40: 65,162,140 km (0.105 R)
• M41: 68,019,160 km (0.106 R)

Asteroid Belt

Center: 10.09 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Ice Giant

Semi-Major Axis: 10.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 223.9

Radius: 7.7

Gravity: 3.78 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 7.85 AU - 12.87 AU

Year: 21531 Days

Day: 18.1 Hours

Environment

Temp: -234 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 55,054,297 km

• M1: 95,892 km (0.09 R)
• M2: 347,217 km (0.118 R)
• M3: 665,112 km (0.078 R)
• M4: 1,717,234 km (0.104 R)
• M5: 2,199,238 km (0.112 R)
• M6: 11,098,516 km (0.107 R)
• M7: 15,398,707 km (0.089 R)
• M8: 18,307,638 km (0.062 R)
• M9: 20,438,510 km (0.104 R)
• M10: 21,651,749 km (0.099 R)
• M11: 21,917,883 km (0.043 R)
• M12: 24,316,535 km (0.096 R)
• M13: 37,548,467 km (0.042 R)
• M14: 38,579,196 km (0.075 R)
• M15: 47,663,677 km (0.069 R)
• M16: 54,234,015 km (0.101 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 294 - 14,057 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit